Michael F. Holick, PhD, MD

Michael F. Holick, PhD, MD, professor of medicine, physiology and biophysics, former director of the General Clinical Research Center and former director of the Bone Health Care Clinic at Boston University Medical Center. He is author of The Vitamin D Solution. DrHolick.com

Vitamin D Benefits
Wellness

Vitamin D Benefits

Michael F. Holick, PhD, MD | March 20, 2023

If you follow health news online, you’re likely to see an endless barrage of contradictory information on this crucial vitamin.…

Are You Getting Enough of the Sunshine Vitamin?

Are You Getting Enough of the Sunshine Vitamin?

Michael F. Holick, PhD, MD | January 19, 2023

Did you know that vitamin D deficiency is extremely common even in the US? It is estimated that 50% of…

How Vitamin D Helps Protect Against COVID-19 and More
Wellness

How Vitamin D Helps Protect Against COVID-19 and More

Michael F. Holick, PhD, MD | July 1, 2021

Optimal levels of vitamin D offer protection against many health threats, including COVID-19. But how much do you need to stay healthy?

The Vital Vitamin D/COVID-19 Connection—Sarah Hiner Talks to Michael F. Holick, MD, PhD, Author of The Vitamin D Solution

The Vital Vitamin D/COVID-19 Connection—Sarah Hiner Talks to Michael F. Holick, MD, PhD, Author of The Vitamin D Solution

Michael F. Holick, PhD, MD | January 20, 2021

Vitamin D—a simple, everyday and inexpensive vitamin supplement—could significantly reduce your risk of getting and dying from COVID.

More Sun, Longer Life?

More Sun, Longer Life?

Michael F. Holick, PhD, MD | June 28, 2016

Let the sunshine in. It’s good for the heart, according to a new study. It’s no excuse to start sunbathing…

Do This Before You Brush Your Teeth

Do This Before You Brush Your Teeth

Michael F. Holick, PhD, MD | June 20, 2016

Oil pulling for sturdy gums and teeth sounds like a complicated (possibly painful!) procedure, but it’s really quite easy and…

The Truth About Sunshine
Wellness

The Truth About Sunshine

Michael F. Holick, PhD, MD | June 9, 2016

Are we going overboard by avoiding it all the time? It’s a gorgeous summer morning, so you step outside to…

The Truth About Vitamin D

The Truth About Vitamin D

Michael F. Holick, PhD, MD | May 27, 2015

Low blood levels of vitamin D have been linked to many diseases including osteoporosis, heart disease, cancer, type 2 diabetes,…

Use Natural Light to Improve Your Health
Wellness

Use Natural Light to Improve Your Health

Russel J. Reiter, PhD | September 10, 2012

How Light Affects Your Health, Day and Night As days lengthen through spring my thoughts often turn to... light. Every…

Misguided Guidelines on Vitamin D?

Misguided Guidelines on Vitamin D?

Michael F. Holick, PhD, MD | July 19, 2012

To me, it seemed to take a long time for the Institute of Medicine (IOM), which sets the recommended dietary…

Foggy and Forgetful? The Problem Could Lie in the Liver

Foggy and Forgetful? The Problem Could Lie in the Liver

Michael F. Holick, PhD, MD | February 8, 2012

A woman started making so many mistakes at work that despite her decade of supercompetent service to the company, she…